Topic:

The Deep Zone

The deep zone is the deepest part of the ocean that exist beneath the Abyssopelagic zone. Its depth reaches as far as 11,000 m (36,086 ft). At that depth the ocean is cold and dark because sunlight (photosynthesis) only reaches as far as 100 - 200 m and radiation stops which accounts for the cold temperature. Because of the cold temperature it was once thought that very little life forms lived at that depth; however it was recently discovered in the last few decades that a vast array of life forms live there.

Summary:

More is known about our universe than is known about the deepest levels of our ocean's environment. Because the Earth is covered by 71 % of oceans and is within our reach scientist are taking more of an interest in this unexplored frontier. And in the last 30 years scientist have learned that they have so much to learn. So far it is known that at depths of about 2000 m and onward the ocean is completely dark and slightly above freezing because radiation does not reach that far. Scientist have termed layers of the ocean depths as zones. Each zone represent a change in the ocean and it environment. The deeper you go down into the ocean the creatures change because of the their environment. That is where bioluminescence sea creature are seen and many others that began to look like something out of a horror flick.These creature have evolved to adapt to their environment. Some have large eyes so that any glance of light will allow them to see prey and or avoid predators. Still others cannot see and use the sense to capture the food .They have also learn that hydrostatic pressure is an important factor in that environment because that pressure allows air pockets in the fish swim bladder to be crushed.This discovery has helped those in the food industry to use that technology of high pressure to sterilize packaged meat.There may be other discoveries that we can learn by exploring the deep sea.